public class ForEachAdjunct extends StreamingAdjunct
| Constructor and Description |
|---|
ForEachAdjunct() |
| Modifier and Type | Method and Description |
|---|---|
FeedMaker |
getFeedMaker(Expression expr,
int arg)
Get a FeedMaker, a factory class that creates a Feed to evaluate this expression
in streaming mode.
|
static int |
getStreamability(ContextSwitchingExpression expression,
int syntacticContext,
boolean allowExtensions,
List<String> reasons) |
WatchMaker |
getWatchMaker(Expression expression,
List<String> reasonsForFailure)
Get a WatchMaker, a factory class that creates a Watch to evaluate this expression
in streaming mode.
|
getConfiguration, makeStreamingAdjunct, setConfigurationpublic WatchMaker getWatchMaker(Expression expression, List<String> reasonsForFailure) throws XPathException
StreamingAdjunctExpression.WATCH_METHODgetWatchMaker in class StreamingAdjunctexpression - the expression to be evaluated in streaming modereasonsForFailure - if non-null, this is a list supplied by the caller which will be populated
by the callee with one or more messages indicating why it was not possible to allocate a WatchMaker.
Normally if the list is non-empty on return, the return value from the method will be null.XPathException - in the event of a failurepublic FeedMaker getFeedMaker(Expression expr, int arg) throws XPathException
StreamingAdjunctgetFeedMaker in class StreamingAdjunctexpr - the expression to be evaluated in streaming modearg - identifies the argument with respect to which the expression is to be inverted:
usually 0 to indicate the first argument is the value that is streamed. Argument numbering
is the same as the sequence of arguments/operands returned by the method Expression.iterateSubExpressions()XPathException - in the event of a failurepublic static int getStreamability(ContextSwitchingExpression expression, int syntacticContext, boolean allowExtensions, List<String> reasons)
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